Home / 378,921.94-522,899.21-225,881.14

Finding the Fourth Proportional to 378,921.94, 522,899.21 and 225,881.14

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Solution

The fourth proportional to 378,921.94, 522,899.21 and 225,881.14 is: 311,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,921.94 : 522,899.21 = 225,881.14 : x
  2. Step 2: Convert to fraction form
    378,921.94/522,899.21 = 225,881.14/x
  3. Step 3: Cross multiply
    378,921.94x = 522,899.21 × 225,881.14
  4. Step 4: Simplify right side
    378,921.94x = 118,113,069,659.90
  5. Step 5: Solve for x
    x = 118,113,069,659.90/378,921.94
  6. Step 6: Final answer
    x = 311,708.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.